At a W.H.O. news conference, Marie-Paule Kieny, chief of the W.H.O.'s vaccine research initiative, estimated that the world's vaccine makers had the capacity to make a maximum of one to two billion doses of a n...
It is estimated that every year 50 unaccompanied children arrive in Britain.据估计，每年有50名儿童独自来到英国。We cannot measure pain directly. It can only be estimated.我们无法直接度量出疼痛的程度，而只能是作出估计。He estimated the speed of the winds from th...